Final answer:
Franklin D. Roosevelt was diagnosed with polio after being selected as the governor of New York.
Step-by-step explanation:
Franklin D. Roosevelt was diagnosed with polio after being selected as the governor of New York in 1928. Polio, also known as poliomyelitis, is a viral infectious disease that affects the nervous system, resulting in paralysis. Roosevelt contracted polio in 1921 and was left permanently disabled, requiring the use of braces and a wheelchair.